/*
 * Copyright (C) 2013 Chen Hui <calmer91@gmail.com>
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package master.flame.danmaku.danmaku.model;

public interface IDanmakus {

    public boolean addItem(BaseDanmaku item);

    public boolean removeItem(BaseDanmaku item);
    
    public IDanmakus subnew(long startTime, long endTime);

    public IDanmakus sub(long startTime, long endTime);

    public int size();

    public void clear();
    
    public BaseDanmaku first();
    
    public BaseDanmaku last();
    
    public IDanmakuIterator iterator();
    
    public boolean contains(BaseDanmaku item);

    public boolean isEmpty();
    
    public void setSubItemsDuplicateMergingEnabled(boolean enable);

}
